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strwidth.c

/* Copyright (c) 1992 AT&T - All rights reserved. */
#include <libc.h>
#include <libg.h>
#include "libgint.h"

long
strwidth(Font *f, char *s)
{
      int wid, twid;
      enum { Max = 128 };
      Rune cbuf[Max];
      unsigned short fbuf[Max];
      Rune r;

      twid = 0;
      while (*s)
      {
            if (cachechars(f, &s, cbuf, Max, &wid, fbuf) <= 0)
                  s += chartorune(&r, s);
            else
                  twid += wid;
      }
      return twid;
}

Point
strsize(Font *f, char *s)
{
      return Pt(strwidth(f, s), f->height);
}

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